Not sure how much time you want to put into this, but if you want to make each mountain unique, I am working on a similar concept map(started as playing and turned into something I could use). http://www.cartographersguild.com/showthread.php?t=3653
If you want some more details, check out the link in my sig.
Thanks. I'm definitely going to look into that. Currently I'm using some mountain brushes ironmetal posted as part of his tut on hand-drawn mountains, but my plan is to eventually hand draw complete mountain ranges to scan in.
"Unless I'm allowed to carry around a gun to shoot their giant killer-spiders, Australia needs to stay the hell away from me. Also Australians, who if they have lived this long are obviously agents of the spiders and not to be trusted."